[INFO] cloning repository https://github.com/kawaii-Code/battleships
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kawaii-Code/battleships" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawaii-Code%2Fbattleships", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawaii-Code%2Fbattleships'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37224818b3fcbcc94ea2fcee1edc93a3abfccc18
[INFO] checking kawaii-Code/battleships against try#f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208 for pr-139419
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawaii-Code%2Fbattleships" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kawaii-Code/battleships on toolchain f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kawaii-Code/battleships
[INFO] finished tweaking git repo https://github.com/kawaii-Code/battleships
[INFO] tweaked toml for git repo https://github.com/kawaii-Code/battleships written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kawaii-Code/battleships already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4792f5c15985fb73f11c8b97b4ddfea5ec69cb04eb8dfe8e0d8c09aa1520c1f9
[INFO] running `Command { std: "docker" "start" "-a" "4792f5c15985fb73f11c8b97b4ddfea5ec69cb04eb8dfe8e0d8c09aa1520c1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4792f5c15985fb73f11c8b97b4ddfea5ec69cb04eb8dfe8e0d8c09aa1520c1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4792f5c15985fb73f11c8b97b4ddfea5ec69cb04eb8dfe8e0d8c09aa1520c1f9", kill_on_drop: false }`
[INFO] [stdout] 4792f5c15985fb73f11c8b97b4ddfea5ec69cb04eb8dfe8e0d8c09aa1520c1f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ea8ddb0855f58aaee6bc27061e41eb7e8099f8ddc9e82c0ac6aaeda10aa6668
[INFO] running `Command { std: "docker" "start" "-a" "9ea8ddb0855f58aaee6bc27061e41eb7e8099f8ddc9e82c0ac6aaeda10aa6668", kill_on_drop: false }`
[INFO] [stderr]     Checking battleships v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `mark` and `mark_kill` are never used
[INFO] [stdout]   --> src/battleships/field.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CheckField {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn mark(&mut self, x: usize, y: usize, marker: CheckedCell) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn mark_kill(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Victory` is never used
[INFO] [stdout]  --> src/battleships/player.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Victory {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `did_lose` and `shoot` are never used
[INFO] [stdout]   --> src/battleships/player.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Player {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn did_lose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn shoot(&mut self, opponent: &mut Player, x: usize, y: usize) -> Result<Victory, String> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/client.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mark` and `mark_kill` are never used
[INFO] [stdout]   --> src/battleships/field.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CheckField {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn mark(&mut self, x: usize, y: usize, marker: CheckedCell) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn mark_kill(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mark` and `mark_kill` are never used
[INFO] [stdout]   --> src/battleships/field.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CheckField {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn mark(&mut self, x: usize, y: usize, marker: CheckedCell) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn mark_kill(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Victory` is never used
[INFO] [stdout]  --> src/battleships/player.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Victory {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `did_lose` and `shoot` are never used
[INFO] [stdout]   --> src/battleships/player.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Player {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn did_lose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn shoot(&mut self, opponent: &mut Player, x: usize, y: usize) -> Result<Victory, String> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `battleships` (bin "server" test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208/bin/rustc --crate-name server --edition=2021 src/server.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=95b25d7da174e33e -C extra-filename=-0be5919ec2636366 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/client.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_PLACE` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const MAGIC_BYTE_PLACE: u8 = 1;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_SHOOT` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const MAGIC_BYTE_SHOOT: u8 = 2;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_GET_SHOT` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const MAGIC_BYTE_GET_SHOT: u8 = 2;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn send(stream: &mut TcpStream, bytes: &[u8]) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_blocking` is never used
[INFO] [stdout]   --> src/utilities/unsafe_net.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn read_blocking(stream: &mut TcpStream, buf: &mut [u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_shot` is never used
[INFO] [stdout]  --> src/gameplay.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_shot(player: &mut Player) -> Shot {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_PLACE` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const MAGIC_BYTE_PLACE: u8 = 1;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_SHOOT` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const MAGIC_BYTE_SHOOT: u8 = 2;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_BYTE_GET_SHOT` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const MAGIC_BYTE_GET_SHOT: u8 = 2;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]  --> src/utilities/unsafe_net.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn send(stream: &mut TcpStream, bytes: &[u8]) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_blocking` is never used
[INFO] [stdout]   --> src/utilities/unsafe_net.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn read_blocking(stream: &mut TcpStream, buf: &mut [u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_shot` is never used
[INFO] [stdout]  --> src/gameplay.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_shot(player: &mut Player) -> Shot {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mark` and `mark_kill` are never used
[INFO] [stdout]   --> src/battleships/field.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CheckField {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn mark(&mut self, x: usize, y: usize, marker: CheckedCell) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn mark_kill(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Victory` is never used
[INFO] [stdout]  --> src/battleships/player.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Victory {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `did_lose` and `shoot` are never used
[INFO] [stdout]   --> src/battleships/player.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Player {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn did_lose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn shoot(&mut self, opponent: &mut Player, x: usize, y: usize) -> Result<Victory, String> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/server.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let _ = player.take_damage(shot_buf[1].into(), shot_buf[2].into());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9ea8ddb0855f58aaee6bc27061e41eb7e8099f8ddc9e82c0ac6aaeda10aa6668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea8ddb0855f58aaee6bc27061e41eb7e8099f8ddc9e82c0ac6aaeda10aa6668", kill_on_drop: false }`
[INFO] [stdout] 9ea8ddb0855f58aaee6bc27061e41eb7e8099f8ddc9e82c0ac6aaeda10aa6668